Da`eef (Weak) Hadeeth No:20 "The Prophet (sallallaahu `alaihi wa sallam), when he raised his hands in du`aa'', he would not put them down until he had wiped his face with them."

Transmitted by Tirmidhi (2/244) & Ibn `Asaakir (7/12/2) via: Hammaad ibn `Isa al-Juhani from Hanzalah ibn Abi Sufyaan al-Jamhi from Saalim ibn `Abdullaah from his father from `Umar ibn al-Khattaab, who said: ...

Tirmidhi said after it, "This is a saheeh ghareeb hadeeth. We only know it as a hadeeth of Hammaad ibn `Esa, for he is alone in reporting it; he has few ahaadeeth, but the people have reported from him."

However, this reporter is weak, as in Taqreeb of Ibn Hajr, who says about him in Tahdheeb:

Ibn Ma`een said, "A good shaikh" Abu Haatim said, "Weak in Hadeeth"; Abu Daawood said, "Weak, he reports munkar ahaadeeth"; Haakim and Naqqaash said, "He reports fabricated ahaadeeth from Ibn Juraij and Ja`far as-Saadiq." He is declared to be weak by Daaraqutni. Ibn Hibbaan said, "He reports things which are the wrong way round on the authority of Ibn Juraij and `Abdul `Azeez ibn `Umar ibn `Abdul `Azeez, such that it seems to those whose field this is that it is deliberate; it is not permissible to use him as proof." Ibn Maakoolaa said, "They declare his ahaadeeth to be weak."

Hence, the like of this reporter is very weak, so his ahaadeeth cannot be raised to the level of hasan, let alone saheeh!

A similar hadeeth is: "When the Prophet did du`aa'' and raised his hands, he would wipe his face with his hands."

Da`eef (Weak). Abu Daawood (1492) from Ibn Lahee`ah from Hafs ibn Hishaam ibn `Utbah ibn Abi Waqqaas from Saa''ib ibn Yazeed from his father.

This is a weak sanad due to Hafs ibn Hishaam being unknown and the weakness of Ibn Lahee`ah (cf. Taqreeb at-Tahdheeb).

This hadeeth cannot be strengthened by the two routes of narration together due to the severity in weakness of the first one, which you have seen.

The Weakness of the Ahaadeeth Mentioning Wiping the Face with the Hands After Du`aa'' (Supplication) From Irwaa'' al-Ghaleel (2/178-182) by Shaykh al-Albaani